[ltt-dev] [PATCH take2 13/13] enable text output for ltt-relay-locked

[Mathieu Desnoyers]

* Lai Jiangshan (laijs at cn.fujitsu.com) wrote:
> all done, enable text output for ltt-relay-locked
> 
> Signed-off-by: Lai Jiangshan <laijs at cn.fujitsu.com>
> ---
> diff --git a/ltt/ltt-relay-locked.c b/ltt/ltt-relay-locked.c
> index d662303..a17e2d5
> --- a/ltt/ltt-relay-locked.c
> +++ b/ltt/ltt-relay-locked.c
> @@ -697,6 +715,7 @@ static void ltt_relay_print_buffer_errors(struct ltt_channel_struct *ltt_chan,
>  
>  static void ltt_relay_remove_dirs(struct ltt_trace_struct *trace)
>  {
> +	ltt_txt_remove_dir(trace);
>  	debugfs_remove(trace->dentry.trace_root);
>  }
>  
> @@ -807,9 +826,16 @@ static int ltt_relay_create_channel(const char *trace_name,
>  		goto relay_open_error;
>  	}
>  
> +	ltt_chan->buf_access_ops = &ltt_channel_buf_accesser;
> +	ltt_chan->txt_entry = ltt_txt_create(trace, ltt_chan);
> +	if (!ltt_chan->txt_entry)
> +		goto relay_txt_error;
> +
>  	err = 0;
>  	goto end;
>  
> +relay_txt_error:
> +	ltt_relay_close(ltt_chan->trans_channel_data);
>  relay_open_error:
>  	percpu_free(ltt_chan->buf);
>  ltt_percpu_alloc_error:
> @@ -821,11 +847,15 @@ end:
>  
>  static int ltt_relay_create_dirs(struct ltt_trace_struct *new_trace)
>  {
> +	if (ltt_txt_create_dir(new_trace))
> +		return EEXIST;
> +
>  	new_trace->dentry.trace_root = debugfs_create_dir(new_trace->trace_name,
>  			ltt_root_dentry);
>  	if (new_trace->dentry.trace_root == NULL) {
>  		printk(KERN_ERR "LTT : Trace directory name %s already taken\n",
>  				new_trace->trace_name);
> +		ltt_txt_remove_dir(new_trace);
>  		return EEXIST;
>  	}
>  
> @@ -889,6 +919,7 @@ static void ltt_relay_remove_channel(struct ltt_channel_struct *channel)
>  {
>  	struct rchan *rchan = channel->trans_channel_data;
>  
> +	ltt_txt_remove(channel, channel->txt_entry);
>  	ltt_relay_close(rchan);
>  	kref_put(&channel->kref, ltt_relay_release_channel);
>  }
> @@ -1308,6 +1313,9 @@ static notrace int ltt_relay_reserve_slot(struct ltt_trace_struct *trace,
>  	struct ltt_reserve_switch_offsets offsets;
>  	unsigned long flags;
>  
> +	if (atomic_read(&ltt_channel->channel_disabled))
> +		return -EBUSY;
> +

channel_disabled is unneeded.

Mathieu

>  	raw_local_irq_save(flags);
>  	__raw_spin_lock(&ltt_buf->lock);
>  
> 
> 
> 
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> 

-- 
Mathieu Desnoyers
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